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|Atmospheric nitrogen input into the North Sea: organic nutrient detection|
|Buczynska, A.J.; Dirtu, A.C.; Favoreto, R.; Godoi, A.F.L.; Bencs, L.; Potgieter-Vermaak, S.; Godoi, R.H.M.; Van Grieken, R.; Van Vaeck, L. (2007). Atmospheric nitrogen input into the North Sea: organic nutrient detection, in: Mees, J. et al. (Ed.) (2007). VLIZ Young Scientists' Day, Brugge, Belgium 2 March 2007: book of abstracts. VLIZ Special Publication, 39: pp. 24|
|In: Mees, J.; Seys, J. (Ed.) (2007). VLIZ Young Scientists' Day, Brugge, Belgium 2 March 2007: book of abstracts. VLIZ Special Publication, 39. Vlaams Instituut voor de Zee (VLIZ): Oostende. IX, 82 pp., more|
|In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950, more|
Air pollution; Nutrients (mineral); Organic nitrogen; Pollution detection; ANE, North Sea [gazetteer]; Marine
|Authors|| || Top |
- Buczynska, A.J.
- Dirtu, A.C.
- Favoreto, R.
- Godoi, A.F.L.
- Bencs, L.
- Potgieter-Vermaak, S.
- Godoi, R.H.M.
- Van Grieken, R., more
- Van Vaeck, L.
The levels of gaseous organic nitrogen compounds (alkyl nitrates - ANs) together with identification of the possible sources of these compounds in the air were studied. Seasonal trends were investigated by conducting the sampling campaigns during the spring, summer and winter time. The air-mass backward trajectories (BWTs) were calculated for the sampling periods by Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model (Draxler and Rolph, 2003). These BWTs were considered for the determination of the influence of the Atlantic Ocean, the North Sea and the continent as possible sources of ANs. An adapted set-up for low and high volume samplings, extraction and minimized clean-up, identification and quantification capabilities resulting from the complementary use of GC-ECD and GC-MS methods is reported. The AN levels were found to be in the range of a few to 7400 pg.m-3 in the air. The AN fraction consisted of primarily the 2C4, C5 and C6 isomers, which contribute largely to the total AN level. The N-fluxes by ANs were more pronounced for the summer periods than for the winter/spring months, organic nitrates were the most abundant in the Atlantic/Channel/UK air-masses.